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- W4384156890 abstract "Mixed europium-barium-titanate perovskites, EuxBa1-xTiO3, were investigated as nanocatalysts for the photodetoxification of a mustard gas surrogate, 2-chloroethylethyl sulfide, CEES. EuxBa1-xTiO3 nanoparticles were prepared using an enhanced sol–gel method, resulting 10–25 nm particles. A lanthanide valence and structure were altered by applying a heat treatment in oxidizing or reducing atmospheres. The results demonstrated a high adsorption capacity and improved catalytic decomposition activity in comparison to a set of previously explored transition metal oxide photocatalysts, including barium titanate. Analysis of the decomposition products indicated hydrolysis as the predominant reactive detoxification mechanism in the dark. Upon light irradiation, radicals were formed and contributed to the oxidation of CEES, especially on the sample rich in Eu(III) and oxygen, with more developed porosity. The results suggested photogenerated electrons and holes, influenced by the presence of Eu, contributed to free radical formation and oxidation reactions, respectively, increasing both weight uptake and the efficiency of catalytic decomposition." @default.
- W4384156890 created "2023-07-14" @default.
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- W4384156890 date "2023-09-01" @default.
- W4384156890 modified "2023-10-16" @default.
- W4384156890 title "Europium barium titanate perovskite nano-photocatalysts: Mechanistic analysis of a chloro-dialkyl sulfide decomposition/detoxification" @default.
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- W4384156890 doi "https://doi.org/10.1016/j.cej.2023.144576" @default.
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